netdev - Re: ip6tables filter breakage.

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Date:	Wed, 6 Aug 2014 18:13:17 -0700
From:	Tom Herbert <therbert@...gle.com>
To:	Pablo Neira Ayuso <pablo@...filter.org>
Cc:	David Miller <davem@...emloft.net>, davej@...hat.com,
	Linux Netdev List <netdev@...r.kernel.org>,
	netfilter-devel@...r.kernel.org
Subject: Re: ip6tables filter breakage.

Thanks for catch an fix!

On Wed, Aug 6, 2014 at 3:01 PM, Pablo Neira Ayuso <pablo@...filter.org> wrote:
> On Wed, Aug 06, 2014 at 01:13:54PM -0700, David Miller wrote:
>> From: Dave Jones <davej@...hat.com>
>> Date: Wed, 6 Aug 2014 15:52:22 -0400
>>
>> CC:'ing netfilter-devel, Dave please do this in the future for
>> netfilter reports, thanks.
>>
>> > After updating to Linus' current tree with todays net/ merge,
>> > I noticed that ip6tables doesn't work any more..
>> >
>> > # ip6tables -F
>> > ip6tables v1.4.19.1: can't initialize ip6tables table `filter': No
>> > chain/target/match by that name
>> > Perhaps ip6tables or your kernel needs to be upgraded
>> >
>> > My config has CONFIG_IP6_NF_FILTER=m
>> > I also note that ip6table_filter.ko doesn't get auto-loaded now.
>> > But even after modprobing it, I get the same message.
>> >
>> > Is there some additional option I now need to enable ?
>> >
>> >
>> > I was a little surprised by how CONFIG_NF_TABLES is mandatory
>> > for iptables to keep working, even if you don't have nft userspace.
>> > (The only relevant thing in the Kconfig was related to x_tables,
>> >  which I wasn't using).
>> >
>> > Perhaps either some select's, or additional help text ?
>
> Cc'ing Tom:
>
> cb1ce2e ipv6: Implement automatic flow label generation on transmit
> has allocated socket option 64 which is already reserved by ip6tables.
>
> I'm going to send a patch to fix this.
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